Ever since id software’s release of Wolfenstein 3D Classic for the iPhone made it clear that an FPS on the iPhone and iPod Touch’s hardware could not only be done, but done well, I’ve been twitching for Doom to hit the iPhone. But despite the fact that id software programmer John Carmack announced he was working on it six months ago, the title never quite hit the App Store.

That’s all changed. Doom Classic is now available on the App Store. And it’s fantastic.

Doom Classic ships with all four episodes of the original Ultimate Doom, each containing nine levels of Martian demon killing action. The control scheme, which worked so well in Wolfenstein 3D, has been refined even further for Doom Classic, offering up a simple and highly playable control scheme intuitive to anyone with thumbs. Other features includes four player muiltplayer over WiFi and the ability in the future to download content packs like Doom 2 or Final Doom for a marginal additional fee.

One interesting change is in how Doom Classic handles death. Wolfenstein Classic simply started you at the beginning of the level, with your pistol and 20 bullets. But Doom Classic gives you the option of fitting yourself up with additional weaponry. It’s a good compromise between the lack of a quick load feature and allowing you to keep your gear between levels.

If you’re interested in Doom Classic, it’s available now for an affordable price over on the App Store.